265-degree ultrawide-angle fish-eye lens
A technology of eyeglass lens and wide-angle fish, applied in the field of lens, can solve the problem of monitoring dead angle, etc., and achieve the effect of correcting chromatic aberration, improving image quality, and good image quality.
Inactive Publication Date: 2018-04-20
ZHONGSHAN UVATA OPTICAL
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Problems solved by technology
[0002] With the development of optical lens and chip technology, the conventional wide-angle lens can no longer meet the application in some occasions due to the limitation of its field of view, such as the field of security and monitoring lights. The conventional lens is limited by the field of view of the lens , there will be a monitoring dead angle, and the fisheye lens can meet the requirements of a large observation range and can solve this problem
Method used
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[0047] In order to make the technical problems, technical solutions and beneficial effects solved by the present application clearer, the present application will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present application, and are not intended to limit the present application.
[0048] The application is achieved through the following technical solutions:
[0049] Such as Figure 1 to Figure 6 As shown, the 265 ° super wide-angle fisheye lens includes a lens barrel, which is characterized in that the lens barrel is provided with along the optical axis from the object plane to the image plane and includes: the first lens 1, the second lens 2, the second lens Three lens 3, fourth lens 4, fifth lens 5, sixth lens 6, seventh lens 7, eighth lens 8, ninth lens 9, tenth lens 10, eleventh lens 11, inside the lens barrel A CCD ...
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The application relates to a lens, and specifically relates to a 265-degree ultrawide-angle fish-eye lens. The lens comprises a lens barrel; a first lens, a second lens, a third lens, a fourth lens, afifth lens, a sixth lens, a seventh lens, an eighth lens, a ninth lens, a tenth lens and an eleventh lens are arranged in the lens barrel in sequence along an optical axis from an object plane to animage plane; a CCD sensor chip is also located at the rear side of the eleventh lens in the lens barrel; and an optical filter and a protection glass lens located between the optical filter and a CCDsensor are arranged between the eleventh lens and the CCD sensor chip. According to the lens, the angle of field of view of the lens reaches the ultrawide-angle range of 265 degrees, the F-Theta distortion can be less than 11%, the deflection of shot image edges is relatively small, the chromatic aberration is well corrected, the imaging quality is good, the effect of tens of megapixels can be achieved, and the imaging quality is improved.
Description
【Technical field】 [0001] The present application relates to a lens, in particular to a 265° super wide-angle fisheye lens. 【Background technique】 [0002] With the development of optical lens and chip technology, the conventional wide-angle lens can no longer meet the application in some occasions due to the limitation of its field of view, such as the field of security and monitoring lights. The conventional lens is limited by the field of view of the lens , there will be a monitoring dead angle, and the fisheye lens can meet the requirements of a large observation range and can solve this problem. Generally, a fisheye lens with an angle of view exceeding 140° is a fisheye lens, and a field angle exceeding 180° is a 265° ultra-wide-angle fisheye lens. Currently, the largest 265° ultra-wide-angle fisheye lens on the market can reach 220° or 230°. 【Content of invention】 [0003] In order to provide a fisheye lens with a larger field of view, the present application provide...
Claims
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IPC IPC(8): G02B13/06
CPCG02B13/06
Inventor 曹玉坚李沙江威况强华安峰博裴锐锐曾春燕
Owner ZHONGSHAN UVATA OPTICAL